Chore: Rewrite sqlstore migration test to use standard library (#29589)
Chore: Rewrite sqlstore migration test to use standard library (#29589)

Signed-off-by: Emil Hessman <ae80d870eb40a8fd7c256c0ec3faf2ba511ba134@hessman.se>
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana